[UX] Allow multiple values, or OR'd conditions for layouts and blocks.

Describe your issue or idea

I have three webform nodes that need a block placed at the top of the page. Not all my webforms though - just three of them. Today, the only solution to this problem is to either create three identical layouts, each with a condition nodeID = X... Or, to create a single layout with the same block placed three times with a condition nodeID = X.

Ideally, we'd be able to add more than one node ID in either of these places, or OR two conditions together.

Edit: the "URL Path" Visibility condition, for example, allows me to enter one path per line. Why am I not able to add one node per line, in the same way?

(Also, this means there's a third solution today: you can use the URL path condition and put in node/nid instead of trying to use the node ID condition)